According to reports,China Radio and television 5g is expected to build 400000 5g base stations in 2021In fact, relevant parties have also given a plan of 450000 ~ 500000.

400000 radio and television 700MHz base stations can cover almost more than 90% of the administrative villages in the country. Therefore, if the progress is smoothBy the end of next year, 700MHz may realize the whole network coverage of radio and television 5g.

As for the construction scheme of radio and television 5g, Liang Jing, director of 5g working group of Hunan cable television network (Group) Co., Ltd., pointed out,Future radio and television 5gBase the network on 700MHz, use 2.6GHz to enhance the network capacity, and 4.9ghz as the capacity supplement.Mainly reflected in:

1. Adhere to 700MHz as the basic network.

Maximize the value of 700MHz network. According to its low latency, it can comprehensively layout the Internet of things applications and create an optimal 5g voice basic network, which can fully meet the needs of edge 720p video service and vonr in the initial stage.

2. Mobile 2.6GHz enhances network capabilities.

Through 700MHz 2.6GHz downlink Ca, 5g network user experience can be fully ensured in large traffic service or congestion scenarios. 700m 2.6g uplink Sul can make up for the lack of 2.6GHz uplink capacity, so as to achieve a win-win experience.

3. Capacity replenishment via 4.9ghz.

In high hotspot areas and special application scenarios of government enterprise private network, network capacity expansion in the area can be realized through 4.9ghz network.

In the 700MHz network deployment of concern, radio and television can refer to the 900MHz network deployment experience of mobile and 800MHz network deployment experience of Telecom,In the initial stage, realize thin network coverage, and then gradually improve network coverage in the later stage.

Compared with 900MHz, the coverage radius of 700MHz increases by 20% ~ 30%, the coverage area increases by 44% ~ 70%, and the required stations are reduced by 30 ~ 40%. Referring to the 800MHz construction of Telecom, 460000 base stations have been completed in two stages in four years, basically realizing the coverage of the whole country.

In May this year, China Radio and television and China Mobile announced that 700m will be jointly built and shared. China Mobile and China Radio and television will invest in the construction of 700MHz 5g wireless network in a ratio of 1:1. China Mobile will open all its 2.6GHz band 5g networks to China Radio and television for compensation, and provide international business transfer services.

China Radio and television 700MHz 2.6GHz can give priority to the network deployment of industrial application scenarios, if 700MHz is used as the main carrier and 2.6GHz is used as the auxiliary carrier, the downlink rate can be extended to 2.1gbps, thus solving the problem of insufficient 700MHz downlink rate; In addition, the 2.6GHz uplink coverage edge is extended.

Compared with 2.6GHz, the uplink edge rate of 700MHz in urban 1:3 networking is 130% higher than that in pure 2.6GHz networking, which is 30% ahead of the uplink and downlink edge rate of ITU. Since the uplink theoretical peak of 700MHz is 175mbps,With the networking improvement of 700MHz and 2.6GHz, the uplink is increased to 390mbps, and then increased by 123%.

In the future networking user residence strategy, in the early stage of 700MHz construction, due to poor network coverage and low terminal penetration, it can follow the mobile strategy, be consistent with the mobile user experience, quickly form network capability, and then develop users.

When 700MHz is mature, users can preferentially stay at 2.6GHz to ensure network quality and improve user experience; When the 2.6GHz network capacity and network coverage are insufficient, switch to 700MHz network to fully supplement.

Since the high priority of 700MHz will cause the middle and near point 700MHz users to reside at 700MHz, resulting in network congestion, in order to ensure the network quality, priority can be given to reside at 2.6GHz. The 700MHz user experience at the far end of the cell is much higher than 2.6GHz. When the capacity or coverage is insufficient, it can be switched to 700MHz.

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